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ON-007-09D Reconnaissance Map of Sand, Gravel, and Quarry Aggregate Resources, Elbert County, Colorado (Data) – v20220223

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The dataset and map produced during this project is a reconnaissance survey of aggregate resources in Elbert County and was created using existing geological maps, geological descriptions, and limited field observations collected during the study. The dataset version represents current information as of 23 February 2022. Digital ZIP download. ON-007-09D – v20220223


Included in this ZIP package:

ON-007-09D-Read_Me-v20220223.pdfA listing of contents of the ZIP package with brief instructions on usage.

ON-007-09-notes.pdfIncludes a description of the map along with references.

GIS_Data-v20220223Contains map package file ON_007_09D_ElbertCountyAggregate_v20220223.mpk which represents current information as of 23 February 2022.


To the GIS map: ON-007-09D Reconnaissance Map of Sand, Gravel, and Quarry Aggregate Resources, Elbert County, Colorado (Map) – v20220223

From the Map Description:

The Colorado aggregate industry produces sand, gravel, and crushed-rock aggregate for concrete and asphalt products, road construction and maintenance, and in public works and infrastructure projects. Currently, there is general concern that access to these resources is becoming restricted especially in proximity to major population growth areas (e.g., the Front Range) where future project demand is greater than the available supply. The value of aggregate deposits is dependent on several factors including the volume, quality, and proximity to the market area where it will be used. This study identifies potential sources of sand, gravel, and aggregate in Elbert County. Potential sources of sand, gravel, and crushed-rock aggregate in twelve counties east of the Front Range were previously identified and are discussed in CGS Special Publications 5A and 5B by Schwochow and others. These publications contain a detailed discussion of the geology of aggregate resources along the Front Range. The maps presented in these publications are used by counties to support land-use planning and by industry and other entities to delineate and locate these resources.

The map produced during this study is a reconnaissance survey of aggregate resources in Elbert County. Additional fieldwork is recommended to verify the physical properties and extent of these potential resources. The map was created using existing geological maps, geological descriptions, and limited field observations collected during this study. The resulting map provides resource ratings of the surficial deposits based on existing geological maps and on the general properties associated with these deposits as observed in other areas of the Front Range as discussed below.